Relations between the optical Fe II emission and ultraviolet spectra in active galactic nuclei
文献类型：期刊论文
| 作者 | Wang, TG; Zhou, YY; Gao, AS; Wang, TG , UNIV SCI & TECHNOL CHINA,CTR ASTROPHYS,HEFEI 230026,ANHUI,PEOPLES R CHINA. |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 1996 |
| 卷号 | 457期号:1页码:111-117 |
| 关键词 | Broad-line Region Profiles Quasars Qsos Iue |
| ISSN号 | 0004-637X |
| 英文摘要 | Optical Fe II emission is a general characteristic of most active galactic nuclei, but the physical conditions in the Fe II-emitting region are not yet understood. The current photoionization models underpredict the total Fe II intensity as well as optical Fe II/H beta ratio. In this paper, we report the results of a statistical analysis of the relation between the optical Fe II strength from the literature and the UV spectra from IUE. We find that Fe II/H beta is strongly correlated with I(lambda 1400)/I(C IV) and I(C IV)/I(Ly alpha). The equivalent widths of optical Fe II and C IV are significantly anticorrelated. While no firm conclusions have been reached, the Fe II strength might be expected to be influenced by (1) the inclination of the accretion disk, (2) the spectrum of the ionizing continuum, and (3) the volume and column densities of the emission-line gas. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:A1996TP70500009 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12661]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Wang, TG , UNIV SCI & TECHNOL CHINA,CTR ASTROPHYS,HEFEI 230026,ANHUI,PEOPLES R CHINA. |
| 推荐引用方式 GB/T 7714 | Wang, TG,Zhou, YY,Gao, AS,et al. Relations between the optical Fe II emission and ultraviolet spectra in active galactic nuclei[J]. ASTROPHYSICAL JOURNAL,1996,457(1):111-117. |
| APA | Wang, TG,Zhou, YY,Gao, AS,&Wang, TG , UNIV SCI & TECHNOL CHINA,CTR ASTROPHYS,HEFEI 230026,ANHUI,PEOPLES R CHINA..(1996).Relations between the optical Fe II emission and ultraviolet spectra in active galactic nuclei.ASTROPHYSICAL JOURNAL,457(1),111-117. |
| MLA | Wang, TG,et al."Relations between the optical Fe II emission and ultraviolet spectra in active galactic nuclei".ASTROPHYSICAL JOURNAL 457.1(1996):111-117. |
入库方式： OAI收割
来源：理论物理研究所
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